Atoms which have different number of protons and neutrons but have the same molecular weight are called Isobars.
The number protons in an atom is called the atomic number (it is this number that tells us which element the atom is). The number of neutrons in an atom can change, but the term for the amount of neutrons is called an isotope. The number of protons and neutrons added together is called the atomic mass.
An atom that has more neutrons than protons is called an Isotope.
Two atoms with the same number of protons but different numbers of neutrons are called "isotopes".
Atoms of the same element cannot have different numbers of protons. Different numbers of protons mean different elements. An atom with the a different number of neutrons is called an isotope.
isotope
an isotope.
isotopes
It is called an isotope.
Atoms that vary in the number of neutrons found in their nuclei are called isotopes. Isotopes of an element have the same number of protons but different numbers of neutrons, which can lead to variations in their atomic mass.
mass number = protons + nuetrons
Atoms containing the same number of protons but different numbers of neutrons are called isotopes. Isotopes have the same atomic number (number of protons) but differ in atomic mass due to the varying number of neutrons.
All isotopes of radium have the same number of protons; the number of neutrons is different.